Year	Index (Units)
1980	22.460
1981	24.613
1982	28.896
1983	31.952
1984	34.754
1985	36.030
1986	42.407
1987	45.515
1988	47.985
1989	49.678
1990	50.861
1991	53.312
1992	55.010
1993	61.138
1994	65.469
1995	68.486
1996	71.082
1997	72.767
1998	75.268
1999	80.536
2000	78.456
2001	79.486
2002	79.219
2003	74.660
2004	73.821
2005	76.985
2006	72.812
2007	65.847
2008	68.727
2009	83.671
2010	93.888
2011	96.467
2012	97.121
2013	98.504
2014	98.405
2015	100.000
2016	101.680
2017	102.999
2018	104.754
2019	105.425
2020	106.171
2021	105.878
2022	114.075
2023	119.015
2024	121.461
2025	123.919
2026	126.393
2027	128.914
2028	131.500
2029	134.069